查询词典 unique feature

A novel feature recognition method based on part modeling process which was recorded by way of macro command in CAD systems was proposed herein: geometry and topology entities which produced by single modeling process were analyzed in the single feature recognition process and all features in part were recognized based on step by step strategy.

每次特征识别仅对单个建模过程中的几何实体和拓扑实体进行分析，逐一识别零件模型的所有特征，有效避免了传统方法对零件模型的全部几何实体和拓扑实体进行特征识别存在的缺陷。

Considering the non-stationary specialties of AE signals, the diamond blunt feature extraction method based on bispectrum was studied. Furthermore, the diamond blunt feature extraction method based on main diagonal slice of normalized bispectrum magnitude of AE signal was proposed.

深入研究了砂轮修整过程中声发射信号的产生机理及其时频特征，提出了基于声发射信号的小波包频带能量分解的金刚石笔钝化状态特征提取方法；将高阶累积量和双谱理论引入到金刚石笔钝化状态的特征提取中，提出了基于声发射信号归一化双谱模对角切片的特征提取方法。

The on-line wheel dressing monitoring experiments were made to investigate the bispectrum feature of acoustic emission signals when the diamond sharpness ratio was sharp, middle blunt and blunt, and a diamond blunt feature extraction method based on main diagonal slic...

通过砂轮修整过程在线监测实验，分析了金刚笔在锐利、中等钝化和钝化状态下，修整过程中声发射信号的双谱特征，提出了归一化双谱模对角切片特征提取方法。研究表明，采用基于声发射的双谱分析方法可以有效监测砂轮修整过程中金刚笔的钝化状态。

It divides into the feature extraction,matching feature points,transformation matrix computation and blending image.

如何利用获得的多对特征点来计算较高精度的变换矩阵是图像拼接中的重要问题。

This method effectively reduced the number of dimensions of the feature and the size of the feature database was decreased.

该方法大大降低了特征向量的维数，减小了特征数据库的规模。

You need to treat the software as the specification. Methodically explore the software feature by feature.

您需要将软件看成是《规格说明书》，将软件的功能一个一个的系统的揭示出来。

Feature Extraction of modulated signal is a important step in modulation identification algorithm based on feature extraction.

在基于特征提取的调制识别算法中，对调制信号特征的提取是其中一个重要的环节。

At the feature extraction stage, the ECG feature points are detected by the moving average method and the differential equation approach.

首先在心电图讯号前处理的部份，利用双向滤波器将杂讯去除，并以移动平均法与微分方程式求得心电图的特徵值。

Prior to searching a multidimensional feature space populated with data objects, each dimension in the feature space is divided into a number of intervals.

在搜索数据对象组装的多维特征空间之前，该特征空间的每个维度被划分为多个间隔。

Basing on the future of fractal,this paper introduces the density analysis method and points out the defects of existing feature selection method based on fractal dimension.Then a feature selection method based on fractal and changes of neighborhood space density is proposed.

根据数据集的分形特征，引入了密度分析方法，指出了当前基于分形维数的属性选择方法的不足，提出了一种基于分形和邻接空间密度变化的属性选择方法。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。